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- W2963256081 abstract "An equiangular tight frame (ETF) is a set of equal norm vectors in a Euclidean space whose coherence is as small as possible, equaling the Welch bound. Also known as Welch-bound-equality sequences, such frames arise in various applications, such as waveform design, quantum information theory, compressed sensing, and algebraic coding theory. ETFs seem to be rare, and only a few methods of constructing them are known. In this paper, we present a new infinite family of complex ETFs that arises from hyperovals in finite projective planes. In particular, we give the first ever construction of a complex ETF of 76 vectors in a space of dimension 19. Recently, a computer-assisted approach was used to show that real ETFs of this size do not exist, resolving a longstanding open problem in this field. Our construction is a modification of a previously known technique for constructing ETFs from balanced incomplete block designs." @default.
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- W2963256081 date "2016-09-01" @default.
- W2963256081 modified "2023-10-17" @default.
- W2963256081 title "Equiangular Tight Frames From Hyperovals" @default.
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- W2963256081 doi "https://doi.org/10.1109/tit.2016.2587865" @default.
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